**Product Specifications:**
Brand: LANGTU
Charging Indicator: Front RGB light bar indicates charging status. Slow green light running from left to right indicates charging in progress. When fully charged or charging stops, RGB light effects resume. Low battery warning: overall red flashing. Battery Voltage:
1. Battery voltage below 3.3V: Backlight effects off when any key is pressed (whether it's BT or 2.4G or whether a normal connection is successful. Slow flashing red light on the "front RGB light bar" indicates low battery.
2. Battery voltage equals or is below 3.2V: Keyboard functions disabled.
Backlight Modes: Adjust backlight modes:
- Flowing Light (default): FN + Mute key
- Twinkling Stars, Up and Down Drifting, One-Key Laser, Spectrum Cycle, Kaleidoscope, Steady Light, Breathing, Crossflow Light, Floating Light Shadows, Snowy Landscape, Serpentine Affection, Tornado Storm, Left and Right Impact Rain Falling in the Courtyard, Rotating Windmill, Positive Rotating Light Waves, Galloping Horses
Adjust Backlight Color: FN + DEL (Color sequence: Red, Yellow, Orange, Green, Ice Blue, Blue, Purple, White, RGB)
Adjust Backlight Brightness: FN + Up/Down Arrow keys (Five levels)
Factory Reset: FN + ECS (Long press for three seconds)
Adjust Dynamic Backlight Speed: FN + Left/Right Arrow keys (Five levels)
System Mode Switching: FN + S = WIN system, FN + A = MAC system
Front RGB Light Bar Effect Switching: FN + Right ALT (Flowing Light, Spectrum, Red, Yellow, Orange, Green, Ice Blue, Blue, Purple, White, Off)
Backlight Off: FN + Backspace
Side RGB Light Effect Switching: FN + APP (Flowing Light, Spectrum, Red, Yellow, Orange, Green, Ice Blue, Blue, Purple, White, Off)
Keyboard Main Performance Output:
- Operating Voltage: 5V
- Operating Current: <500mA
- Input Method: USB
For more details, please contact customer service.
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